Avamar：如何在 edit-firewall-rules.sh （7.3 版以上） 新增或移除自訂 Avamar 防火牆規則

• 隨附 v7.3 的標準 Avamar 防火牆 RPM 的一部分。
• 用戶可以添加或刪除自己的自定義 iptables 規則。
• 自訂規則可在 Avamar 版本升級後繼續有效。
• 自訂規則在防火牆套件更新後仍可繼續使用。

• edit-firewall-rules.sh。
• manage-custom-rules.sh。
• avfwb_custom_config.txt。

• 此檔是一個互動式腳本，它接受使用者輸入並將其格式化為iptables 格式。
• 該檔以客戶友好的方式列出資訊。

• 此檔是 edit-firewall-rules.sh 互動式腳本背後的引擎。
• 此檔案會根據組態檔案中儲存的自訂規則集建立 iptables 規則和命令。
• 此檔案會重新啟動 avfirewall 服務以套用新規則。

Choose an Action
----------------
1) Add a custom rule
2) Remove a custom rule
3) List Current Custom Rules
4) Exit
5) Save & Exit
Enter desired action:

Add a Custom Rule
The user can make selections for iptables fields to construct the rule they wish to add.

• 規則類型：IPv4 或 IPv6。
• 鏈：輸出、輸入、logdrop 或轉發。
• 通訊協定：TCP、UDP、ICMP。
• 來源 IP。
• 來源連接埠。
• 目的地 IP。
• 目的地連接埠。
• 目標：接受、拒絕、放棄、拒絕。
• 節點類型：全部，數據，實用程式。

10.10.10.10||10.10.10.11||tcp||ACCEPT|OUTPUT|ALL

Add Rule Example

Select the type of firewall rule to add

Firewall Rule Types
-------------------
1) IPv4 Rule
2) IPv6 Rule
Enter Firewall Rule Type:

Protocol
--------
1) TCP
2) UDP
3) ICMP
Enter Protocol:
Select the desired CHAIN

Firewall Chains
---------------
1) OUTPUT
2) INPUT
3) LOGDROP
4) FORWARD
Select Chain:
Select the Protocol type to be used

Protocol
--------
1) TCP
2) UDP
3) ICMP
Enter Protocol:

Enter source IP (leave blank for none):
Enter source port (leave blank for none):
Enter destination IP (leave blank for none):
Enter destination port (leave blank for none):
Select the desired target action

Targets
-------
1) ACCEPT
2) REJECT
3) DROP
4) LOGDROP
Select Target:

Select which type of node this new rule will be applied to

Node Types
----------
1) ALL
2) DATA
3) UTILITY
Select node type to apply rule to:

The script will ask you to confirm that you want to add the new rule to the avfwb_custom_config.txt file

Add rule ||||tcp||ACCEPT|OUTPUT|ALL to file? (Y/N): y
Adding ||||tcp||ACCEPT|OUTPUT|ALL to file...

The script asks if you wish to add another rule or return to the main menu

Add another rule? (Y/N):
Return to main menu? (Y/N):

Saving and applying rules

Choose an Action
----------------
1) Add a custom rule
2) Remove a custom rule
3) List Current Custom Rules
4) Exit
5) Save & Exit
Enter desired action: 5

Rules have been saved to /usr/local/avamar/lib/admin/security/avfwb_custom_config.txt
Save and execute rules now? (Y/N):

Choosing Y when asked to save and execute will propagate the config file to all 
nodes, applies the rules accordingly and restarts the avfirewall service.



Removing a rule 

 Choose an Action
----------------
1) Add a custom rule
2) Remove a custom rule
3) List Current Custom Rules
4) Exit
5) Save & Exit
Enter desired action: 2


Select the rule to remove.  The script will confirm "Line xxx has been removed from configuration file"

Return to the main menu.  If we select option 3 "List Current Custom Rules" we will see the list of rules and a list of 'Changes Pending'.



Pending changes will be executed when exiting the script and selecting Y to "Save and execute rules now".

 Rules have been saved to /usr/local/avamar/lib/admin/security/avfwb_custom_config.txt
Save and execute rules now? (Y/N):

admin@util:~/>: ssh-add -l
Could not open a connection to your authentication agent.   <-- keys not loaded
admin@util:~/>: ssh-agent bash
admin@util:~/>: ssh-add ~/.ssh/dpnid
Identity added: .ssh/dpnid (.ssh/dpnid)
admin@util:~/>: ssh-add -l
1024 1b:af:88:95:7a:d8:a9:16:fb:cb:9e:0e:49:32:a3:cd [MD5] .ssh/dpnid (DSA)  <-- keys loaded